I'm trying to setup DP 9.05 (windows Media Agent) and StoreOnce VSA (emulating MSL G3 tape library) as per best practices. I'm following this article https://goo.gl/uLSL6W, but when the backup job starts, it fails with error "[90:51] Tape0:0:1:0C Cannot write to device ( The parameter is incorrect. )".
If I set drive blocksize to 64Kb, the job runs.
The O.S. event viewer doesn't report anything about DP activity.
I'm doing something wrong?